EP 0780954 B1 20000816 - Permanent magnet synchronous electric machine adapted to deliver constant power over a large speed range
Title (en)
Permanent magnet synchronous electric machine adapted to deliver constant power over a large speed range
Title (de)
Permanent Magnet-Synchronmaschine geeignet zur Abgabe konstanter Leistung in einen grossen Geschwindigkeitsbereich
Title (fr)
Machine électrique synchrone à aimants permanents adaptée à fonctionner à puissance constante sur une large plage de vitesse
Publication
Application
Priority
FR 9515408 A 19951222
Abstract (en)
[origin: EP0780954A1] The electric machine includes the stator (19) which includes the polyphase armature with a number of teeth (21) separating grooves (22) in which the turns of the coils are wound. The rotor (1) around its periphery has a predetermined number of pole pieces (3), each separated by at least one permanent magnet (2) of predetermined thickness and magnetised radially or axially. There is a separation (10), formed by an abutment (11), between the radial walls of the magnet and the pole pieces to prevent any risk of demagnetising the permanent magnets when the current is a maximum, notably at a short circuit. The power supply may be DC accumulators and the control (24) is a standard regulator with position sensor.
IPC 1-7
IPC 8 full level
H02K 1/27 (2006.01); H02K 19/02 (2006.01); H02K 21/14 (2006.01)
CPC (source: EP US)
H02K 1/278 (2013.01 - EP US); H02K 21/14 (2013.01 - EP)
Designated contracting state (EPC)
BE DE ES GB IT LU NL SE
DOCDB simple family (publication)
EP 0780954 A1 19970625; EP 0780954 B1 20000816; DE 69609807 D1 20000921; DE 69609807 T2 20010301; FR 2742936 A1 19970627; FR 2742936 B1 19980213; JP 2912277 B2 19990628; JP H09298864 A 19971118
DOCDB simple family (application)
EP 96402797 A 19961218; DE 69609807 T 19961218; FR 9515408 A 19951222; JP 34424696 A 19961224